Another Evans exclusive, Hydraulic heads are heavy-duty, twin-ply drumheads that have an oil-filling between the two plies to greatly reduce drum resonance and, at the same time, emphasize the fundamental and lower overtones of the drum.

These hydraulic glass heads are a great choice for those who want wet attack with depth. I recently purchased a drum set with toms that rang out for days. This is excellent for live...Read complete review

These hydraulic glass heads are a great choice for those who want wet attack with depth. I recently purchased a drum set with toms that rang out for days. This is excellent for live performances but at practice and in recording it's overkill. I've tried the hydraulic blue on the low tom and it was like pounding a washtub, way too dead for my taste. I thought I'd give the glass a try since they're known for brighter attack and it turned out to be just that.Tuned high they still have a bright long sustain for a dampened head. Tuning these batter heads low and the resonant heads very low gave me just the right chest thumping sound for heavier styles. They take some breaking in but are very durable and perfect for small venues and practice spaces. If you have a kit that doesn't resonate a lot or don't like any muffling in your tuning, these aren't for you.For others who want to try the Evans Hydraulic line, I own them all and are basically categorized as:Glass - Open; Blue - Muffled; Black - Dead.

VS

Most Liked Negative Review

Does one thing well, not my style though

Like all evans heads, I think the quality is great. However, I am not in a classic rock / 70's cover band, so this is not the head for me- if...Read complete review

Like all evans heads, I think the quality is great. However, I am not in a classic rock / 70's cover band, so this is not the head for me- if that makes sense. Very little sustain and sort of a wet splat sound with lower tunings. This is sort of like a pinstriped head on steroids. I went to EC2 and am much happier with the more musical sound they give.

I didn't purchase these heads from this site, but I felt like I was obligated to write a review about these heads due to the wide variety of reviews.

I was skeptical myself of these heads before I purchased them as well.

Don't listen to the nay-sayers. They say they have no "tone" and they sound "boxy". These people do NOT know how to tune a drum!

Straight out the box, tuned just a tad higher than I'd normally have them sound amazing even on my 10" tom.

It does exactly what it claims. It lowers the sustain of the drum so you don't have a long, drawn out note (even with both heads tuned to the same note, it decays really fast). This is great for and rock/pop/hardcore music because your note will cut and then get out of the way ASAP.

The attack is accentuated a lot and I find that if TUNED CORRECTLY, you'll hear the tone of the drum easily. They don't sound boxy AT ALL.

I generally use G2's on my 8"-14" toms, but have an 18" floor tom that I Occasionally add. This head decreases the rumble on the 18", and helps craft a nice punchy, controlled tone, making the 18" very useable.

In the past, I've used hydraulics on all of my toms to help curb the overall volume of the kit and it works quite nicely.

I do not recommend them for general studio work. They are designed to eliminate the "warm" frequencies, shorten the sustain, and accentuate the attack and fundamental tone.

I got these a month ago for my black Tama Stagestar 10", 12" and 14" toms and my 16" gray Enforcer second floor tom, and I have to say, this was perhaps the best purchase I've ever made for the drums. They have more ring than the EC2s that I had used before, but still have a nice, short sustain. Even the plywood Enforcer floor tom sounds amazing with a Hydraulic Glass batter head. I will never use any other batter head for my toms. I most highly recommend this drum head.

These hydraulic glass heads are a great choice for those who want wet attack with depth. I recently purchased a drum set with toms that rang out for days. This is excellent for live performances but at practice and in recording it's overkill. I've tried the hydraulic blue on the low tom and it was like pounding a washtub, way too dead for my taste. I thought I'd give the glass a try since they're known for brighter attack and it turned out to be just that.Tuned high they still have a bright long sustain for a dampened head. Tuning these batter heads low and the resonant heads very low gave me just the right chest thumping sound for heavier styles. They take some breaking in but are very durable and perfect for small venues and practice spaces. If you have a kit that doesn't resonate a lot or don't like any muffling in your tuning, these aren't for you.For others who want to try the Evans Hydraulic line, I own them all and are basically categorized as:Glass - Open; Blue - Muffled; Black - Dead.

First let me say, there are maple guys that like big open sounds and there are birch/mahogony guys that like focused sound. Well I'm the latter of the two. I play allot of rudiments within my fills and I want to hear what I'm playing. I want the attack to be precise. After 30 years of playing, I haven't found any drum head that gives me a focused attack and low end sound like Evans Hydraulic. These heads can make cheap drums sound great too. To put it in prespective, It's no secret that Yamaha Recording Custom Drums are the most recorded drums. The reason why is, there are less studio overtones to eliminate in birch wood. If you're a church drummer that doesn't want allot of overtones or maybe a country drummer where less is more, these heads are great. Happy drumming, And rememer, it's not how good of a player you are, it's how much you love what you are playing.Decreases unwanted overtones, increases low end and punch while providing increased attack.The most durable head I've ever played.Most heads cost about the same, they cost what they cost.

these are great heads. they do everything they say they do, and sound great. With a bit of careful tuning, you can eliminate all unnecessary overtones. I have them on all of my toms and they give my drums the exact sound I'm looking for.

I have been using Evans Hydraulics for 2 decadesI have tried others way back when, but nothing sastified my ears like the thick & rich & punchy sound that I hear with little or no overtones depending on the tuning and size of the shells.I use larger drums 14x12 rack, 16x14 rack(used as floor tom), and a 16x18 floor. Hydraulics really let the power of these drums shine through; I tune low so the audience can feel the thunder!! Every one hears the sound that comes out of their drums differently. I happen to like the thud sound of the 70's & 80's before all the techno stuff that's why I only use HydraulicsMy drums, my choice. Try em for a big sound!!

Okay so I've read the other reviews and I like how they all contradict each other. Basically I would recommend you try these heads first. They are not resonant and they eliminate over tones, but that's exactly what I want. They don't fit everyone's taste though. I use them in my pop-punk/hardcore band and they're perfect. I don't know how they would sound with jazz though, I don't play much jazz.